A free background image with a seamless texture of cardboard. This texture of cardboard looks quite realistic, especially when is actually tiled.
Source V. Hartikainen
Sweet and subtle white plaster with hints of noise and grunge.
Source Phil Maurer
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
A simple but elegant classic. Every collection needs one of these.
Source Christopher Burton
A seamless chequerboard pattern formed from a tile that can be had in Inkscape by selecting the rectangle and using shift+alt+i.
Source Firkin
Remixed from a drawing in 'Hungary. A guide book. By several authors', 1890.
Source Firkin
Prismatic Triangular Seamless Pattern III With Background
Source GDJ
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
I guess this one is inspired by an office. A dark office.
Source Andrés Rigo.
Sort of reminds me of those old house wallpapers.
Source Tish
Dark, square, clean and tidy. What more can you ask for?
Source Jaromír Kavan
From a drawing in 'Sun Pictures of the Norfolk Broads', Ernest Suffling, 1892.
Source Firkin
A repeating gloomy background image. This one consists of a pattern of black chains layered on top of a dark textured background.
Source V. Hartikainen
Small dots with minor circles spread across to form a nice mosaic.
Source John Burks
Prismatic Isometric Cube Wireframe Pattern No Background
Source GDJ
This is indeed a bit strange, but here’s to the crazy ones!
Source Christopher Buecheler
A seamless texture traced from an image on opengameart.org shared by Scouser.
Source Firkin
Prismatic Abstract Geometric Background derived from an image on Pixabay.
Source GDJ
Super dark, crisp and detailed. And a Kill Bill reference.
Source Badhon Ebrahim
It looks very nice I think.
Source V. Hartikainen
Orange-red pattern for tiled backgrounds.
Source V. Hartikainen
Bright gray tones with a hint of some metal surface.
Source Hendrik Lammers
The tile this is based on can be retrieved by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin